Code for measurement of sound - absorbing coefficient in reverberation room 混响室法吸声系数测量规范
Reverberant room method for sound power level testing of ventilators 空调风机噪声声功率级测定?混响室法
Acoustics - sound - abserbin coefficient measurement by method of reverbration room 混响室法吸声系数测量规范
Method for measurement of sound absorption coefficients in a reverberation room 混响室中吸音率的测量方法
Acoustics - measurement of sound absorption in a reverberation room iso 354 : 2003 ; german version en iso 354 : 2003 声学.混响室中声音吸收的测量
Standard test method for sound absorption and sound absorption coefficients by the reverberation room method 用混响室法测定吸声及吸声系数的标准试验方法
Electromagnetic compatibility - part 4 - 21 : testing and measurement techniques - reverberation chamber test methods 电磁兼容性.第4 - 21部分:试验和测量技术.混响室试验方法
Acoustics - determination of sound power levels of noise sources using sound pressure - precision methods for reverberation rooms 声学声压法测定噪声源声功率级混响室精密法
Acoustics - determination of sound power levels of noise sources using sound pressure - precision methods for reverberation rooms 声学.利用声压测定噪声源的声级.混响室精确法
Industrial fans - determination of fan sound power levels under standardized laboratory conditions - reverberant room method 工业风扇.标准实验室条件下风扇声功率级的测定.混响室法